Function setup

examples/Asio/Client/ClientReal.h:90–105

static int approach_counter = 0;                    // Cycle through 4 different approaches

void setup() {
    // Initialize LED strip
    FastLED.addLeds<WS2812, DATA_PIN, GRB>(leds, NUM_LEDS);

    // Set all LEDs to dark red initially (indicates waiting/starting state)
    fill_solid(leds, NUM_LEDS, fl::CRGB(64, 0, 0)); // Dark red = starting up
    FastLED.show();

    // Tutorial introduction messages
    FL_WARN("FastLED Networking Tutorial started - 10 LEDs set to dark red");
    FL_WARN("Learning HTTP fetch API with TWO different async patterns:");
    FL_WARN("  APPROACH 1: Promise-based (.then/.catch_) with explicit types");
    FL_WARN("  APPROACH 2: fl::task::await_top_level pattern with explicit types");
    FL_WARN("Toggles between approaches every 10 seconds for comparison...");
    FL_WARN("LED colors indicate status: Red=Error, Green=Promise Success, Blue=Await Success");
}

// APPROACH 1: Promise-based async pattern (JavaScript-like)
// This approach uses method chaining and callbacks - very common in web development